Spabk-pltra cleaner



May 12, 1925.

K. F. TRIGGs SPARK PLUG CLEANER Filed March 3, 1924 FICLZ.

FIGA) JNVENToR.

A TTORN Y.

Patented Mayv 12,

murenV STA-'frias'.

, KENNETH F. Tareas, or HUNmNGTomiNDIAN/i;

srmrriue cnraiivan.V

Appneatian flied nanas, 1924'. serial No. 696,622.

To all whom z't. may cfozwern:

Be it known that -ILKENNETH F. TRIGGS, a citizen of the United States, residing'at Huntington, inthe county vof Huntington and State of Indiana, have invented certain,

new and useful Improvements in Spark- Plug Cleaners, of which the' following is a specification.

My said invention relates toa cleaner for spark plugsnand it is an Yobject of the same to provide a device lof this character which will effectively clean spark plugs at a minimum cost.y

A further object ofthe invention is to provide. means for drying an oil soaked plug and for remvoing sand or dust Ifrom the plug after the carbon has been. taken off.

Referring' to the accompanying drawings which are made a part hereof and on which similar refe-rence characters indicate similar parts,

Figure 1 is a perspective of my invention,

. Figure 42, is a vertical section of the upperpart thereof,

Figure 3, a

Figure 4, an enlarged detail of apart shown in Figure l, and v Figure 5 anelevation'at right angles to Figure 4. l In the 'drawings reference character 1 -detail of aV part shown in indicates a cylindrical casingl which rests on a box 19 here shown ascontaining drawers 2() and'21, the drawer20 containing clean sand and the drawer 21 sand which has become foul and dusty with use. As hereinafter explained an aperture in the top of the box connects the drawer 21 with the interior of the `casi 1.

A lid or top 2 covers the casi 1, said top. having an aperture surrounded y a rubber bushing 4 and another aperture at 26 about which is an upstanding rim by means of v which a bag 3 is supported on top of the casing. The bag is held in place en the rim by a split ring 7 or other convenient clamping means. The interior ofthe 'cas-v ing is divided' into ul per and lower com- A partments by means o a funnel shaped partition'V 23 preferably extending vobliquely from one side nearly tothe other, then h aving a relatively short horizontal portion, and then extending obliquely up to t e other side. A4 trap dooris movably mounted underneath the main oblique section preferably by means of a pivot at the upper side of an opening-in said oblique section. The door underneath which is the spring 28 which isstrong enough `to hold the door closed against the weight of sand resting on it.

The horizontal part of the partition supports a vertical nozzle 27 having a lateral entrance 8 through which sand may gain admission to the` enlarged upper part of the vertical passage of the nozzle. The lower part ofsaid passage is relatively small and is intersected yby a lateral passage 9 coniniunicating with a pipe 13 which communicates with a passage leading from pipe 18, the latter pipe being connected to a source of air under pressure. The nozzle 27 has a shoulder resting ont-he partition, 23 and at its lower end is threaded for engagament with a nut 12 by means of which a gasket 10, a block 11 andthe nozzle itself are held vin place on the partition. The block 11 as 'shown 'in Figure 3 is perforated at 9 to communicate with an air passage leading entrance to a pipe' 16 arranged to communicate'with the pipe 18. The-pipe 16 llas a nozzle v17 proJectin upward toward the bu'shn 4, but `w ich may extend out th-ro the wall of the casing.

In t Aoperation of my device a spark plug is inserted in the rubber bushing 4 and the air blast-1s turned on by depressing the thumbl piece 15.V It will be understood that the upper compartment in the casing 1 has previously been supplied with clean sand from the box 20. "When the valve 24 is opened compressed air passes through the -pi e 13, block 11 andfnozzle 27 and drives last of sand against the plug above it, thesand being supplied through one or more holes 8 leading into the passage of the nozzle 27. This sand impin'ges on the plug and cuts oli the carbon after which the sand falls back against the partition 23 while the air passes out through the canvas bag 3 carrying with it the light-andI line particlesof dust. When the "air blast has )done its work any sand'or dust on the plug may be removed byf de ressing the valve 14 thus causing the air )et to blow oil' sand orother material adherin to the'plug. i

It will be understood that spark shouldbe free from oil or grease before'attem tin to remove the carbon'. This may' rea ily e removed 'by irst'bein washed in gasoline in known manner and t endried overair jet 17 When the sand in the upper compartment becomes dirty by accumulation of carbon, etc., it may be discarded by merely depressing the button 5 to open the door 6 whereuponA the sand will `fall intol the drawer 21. Fresh sand may now be supplied from' drawer 20 to the upper part o the container by way of the' hole sothat a vlen vh of hose can be slipped through .it .an over` the nozzle -whereupon a blast of'sand and air may be. directed againstobjects outside the cleaner. -In this case of course the sand would have to be co1- lected with a scoop and returned to the cleaner via openin 4. v l

Having thus fu y described my said invention, what I claim as -new and desire to secure by Letters Patent, is: r

1. A casing comprising means for supportin a spark plug in position to be oleane a nozzle beneath such supportin means 1n which a mixture of air and san Plugs those skilled in the is made and .by which said mixture is di.- rected a ainst the spark lug, and an air casing for removing loose material from the plug and for drying the oily plug previous to cleaning, su stantially asv set forth. y Y

2. A s ark plu cleaner comprising a casing, a'ho low blocl attached to one side thereof, pipes extending from said block to the interior of the casing and communicating with a source of compressed air outside the casing, valves on said block controlling said pipes, means for supporting'a spark plug inline with the open ends of said pipes, and means `for supplying sand to one of said pipes, substantially as set forth.

l3. A spark plu cleaner comprising a casing, a hollow b ook att-ached to one side thereof, pipes extending from said block Ito the interlor of the casing and communicating with a source of com ressed air outside the casing, valves on sai block controlling said pipes. means for supporting a spark plug in line with the open ends of said pipes, means for supplying sand to one of ofsaid pipes, said casing having an opening in its upper portion providing an exit, and. means 1n connection with said exit to permit egress of air and dust Awhile retaining the sand in the casing, substantially as set forth. Y

4. A casing comprising means for supportingthe spark plug in position to be cleaned, a nozzlebeneath said supporting means, means for admitting compressed `air and sand to the nozzle, and lan'ind'ependent air jetin said casing, substantially as set forth.

.In witness whereof, I have hereunto set my hand and seal at Huntin on, Indiana, this y28tlrday of February, D. nineteen hundred and twenty-four.

KENNETH F. TRIGGs. [n 8.] 

